--- net/core/neighbour.c

+++ net/core/neighbour.c

@@ -945,7 +945,10 @@ static void neigh_update_hhs(struct neig

{

struct hh_cache *hh;

void (*update)(struct hh_cache*, const struct net_device*, const unsigned char *)

- = neigh->dev->header_ops->cache_update;

+ = NULL;

+

+ if (neigh->dev->header_ops)

+ update = neigh->dev->header_ops->cache_update;

if (update) {

for (hh = neigh->hh; hh; hh = hh->hh_next) {